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Surface Nanocrystallization (SNC) of Metallic Materials-Presentation of the Concept behind a New Approach

Ke LU , Jian LU

材料科学技术(英文)

In this paper, a concept of surface nanocrystallization (SNC) of metallic materials is introduced. Three types of SNC processes are classified. Different SNC mechanisms and possible techniques for SNC are discussed with emphasis on mechanically induced surface self-nanocrystallization. Further devel...

关键词:

La对Fe-P-N合金Snoek-Ke-K■ster峰的影响

戢景文 , 魏全金 , 张国福 , 赖祖涵 , 陈廷国

金属学报

研究了F? P—N合金加?对Snoek—Ke-Koster(SKK)峰的影响,发现与合金含La,P的原子浓度比(C_(La)/C_p)有关:对于C_(La)/C_p较大(例如4.56和2.6)的合金,La有明显增强SKK阻?效应:对于C_...

关键词: 内耗 , Snoek-Ke-Koster peak , Fe-P-La-N alloy

Lu-Si-O体系在高温水蒸气环境中的腐蚀行为

洪智亮 , 成来飞 , 鲁琳静 , 张立同 , 王一光

无机材料学报 doi:10.3724/SP.J.1077.2010.00186

采用溶胶-凝胶法制得三种镥硅酸盐体系粉体材料. 以氧化物的摩尔比来表示此三种粉体, 分别为:Lu2O3·SiO2

关键词: Lu2SiO5 , Lu2Si2O7 , environmental barrier coating (EBC) , water vapor corrosion

Lu-Si-O体系在高温水蒸气环境中的腐蚀行为

洪智亮 , 成来飞 , 鲁琳静 , 张立同 , 王一光

无机材料学报 doi:10.3724/SP.J.1077.2010.00186

采用溶胶-凝胶法制得三种镥硅酸盐体系粉体材料.以氧化物的摩尔比来表示此三种粉体,分别为:Lu_2O_3·SiO_2、Lu_2O_3·2SiO_2和

关键词: Lu_2SiO_5 , Lu_2Si_2O_7 , 环境障碍涂层 , 水蒸气腐蚀

TEMPERATURE-DEPENDENCE OF THE MAGNETIC-PROPERTIES OF THE RARE-EARTH TRANSITION-METAL INTERMETALLIC LU2FE14C

Journal of Magnetism and Magnetic Materials

Magnetization curves of the ternary tetragonal compound Lu2Fe14C were measured in an extracting-sample magnetometer in the temperature range from 1.5 to 300 K. The temperature dependence of the magnetic properties of Lu2Fe14C is discussed...

关键词: anisotropy

Effects of Phase Composition on Microstructure and Mechanical Properties of Lu2O3-doped Porous Silicon Nitride Ceramics

Quan Li

材料科学技术(英文)

Porous silicon nitride ceramics (Si3N4) were fabricated by pressureless sintering using different particle size of silicon nitride powder. Lu2O3 was used as sintering additive. According to phase relationships in the ternary ...

关键词: Porous silicon nitride ceramics

溶剂热法制备不同形貌纳米Lu2O3粉体

邱华军 , 施鹰 , 谢建军 , 谢杰

人工晶体学报

本文以水、丙酮、乙醇、乙二醇为溶剂,采用溶剂热法制备了不同形貌的纳米氧化镥(Lu2O3粉)粉体前驱体,将前驱体在400~800 ℃条件下煅烧2 h制得了不同形貌的Eu3+:Lu...

关键词: 溶剂热法 , 氧化镥 , 纳米粉体 , 形貌

Lu-F共掺杂ZnO光电性质的第一性原理计算

张明举 , 李文明 , 郑树凯

中国有色金属学报 doi:10.19476/j.ysxb.1004.0609.2017.05.012

采用基于密度泛函理论(DFT)的第一性原理平面波超软赝势(PWPP)方法,模拟计算未掺杂,Lu、F单掺杂及Lu-F共掺杂ZnO的几何结构、能带结构、态密度分布、光吸收谱和介电常...

关键词: ZnO , 第一性原理 , 共掺杂 , 电子结构 , 光学性质

Fabrication of Porous Si3N4-Lu2Si2O7 Composite Ceramics

Pengfei Zhang Litong Zhang Xiaowei Yin

材料科学技术(英文)

To improve the corrosion resistance of porous Si3N4 used in the high temperature environments, which contain water vapor and volatile species, porous Si3N4-Lu2Si2O7 composite ceramics were fabricated by ...

关键词: Porous ceramics , 氮化硅 , 焦硅酸镥 , 无压烧结

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